Teething issues

Not a lot really. Before, I had 4 BECs running and it didn't seem to do anything? Suppose you run the risk of blowing something

Is it possible that the BEC circuit I'm using is underpowered for the 4 speedos?

This is what I'm using at the moment:

http://www.dimensionengineering.com/ParkBEC.htm

I would suggest not, the BEC is only powering your receiver not the ESC's

is it powering the relays though in the ESCs? if so, its only pumping out 5v at 1.25amps i think. divide that up and each ESC would only be getting 5v at 0.31amps?!

Its not no, as far as i'm aware its just a signal. The batteries are connected to the ESC to supply them and the motors with power.

Hmmmm ok, looks like I'll be back on the phone to them in the morning! Thanks for your help!

http://www.youtube.com/watch?v=tHdgtVa_YuA
heres a video of the problems. any help?

I suppose you could try swapping one of the misbehaving ESC's for one that is working fine and that will tell you if its the motor or the ESC thats problematic? Only other things I can think of is things like making sure the wires are in proper contact etc and that vibration isn't causing any problems with any of the connectors. If your 2 ESC's that are misbehaving have any shared connectors that the front ESC's aren't connected to I would be inclined to start there.

defo the speedos! just tried

sent both off for servicing so we'll see what becomes of them